Wall socket-plate for building-timbers



(No Model.)

W. H. DRAKE. WALL SOCKET PLATE FOR BUILDING TIMBBRS. No. 409,831. Patented Aug. 27, 1889.

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May

UNITED STATES PATENT OFFICE.

\VILLIAM H. DRAKE, OF CHICAGO, ILLINOIS.

WALL SOCKET-PLATE FOR BUILDING-TIMBERS.

SPECIFICATION forming part of Letters Patent No. 409,831, dated August 27, 1889.

Application filed June 1, 1889. Serial No. 312,892. (No model.) i

To all whom it may concern:

Be it known that 1, WILLIAM H. DRAKE, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented new and useful Improvements in \Vall Socket-Plates for Buildinglimbers, of which the following is a specification, reference being had to the accompanying drawings, illustrating the invention, in which Figure 1 is an inside face view of my improved wall socket-plate in position in a portion of a brick wall with a joist'in place therein. Fig. 2 is a vertical central section of Fig. 1 on line as, looking to the inside of one side plate, as indicated by arrow y; Fig. 3, a side view of a joist in a socket-plate with one plate of the same removed.

The purpose of thisinvention is to provide seats or socket-plates for the support of building-timbers which will firmly hold the ends of such timbers in fixed positions, except in case they are burned off, and in such case the timbers may fall down and be released from the socket-plates or seats without disturbing the positions of the latter in the walls.

It has been the custom to provide metal seats for joists or other building timbers with bottoms inclined downward and outward to fit building-timbers which have semi-dovetails on the under edges of their end portions, as shown in the patent to me dated June 23, 1874:, No. 152,283. In such a construction, however, the said timbers, to have suitable strength, are required to be of extra widths, corresponding to the depths of the said dovetails. It is very desirable to save all the material possible in construction and also save the labor of dovetailing the same. I therefore construct my seats or socket-plates so that the lower edges of the timbers are straight their entire length, and also so the timbers are firmly anchored till burned off.

A is the base-plate of the socket, the insidebottom of which is level. The projecting portions II are of the same 4 form to attain anchorage as similar portions shown in the said patent. B B are the side plates, and D is the back or outer plate, all of the plates being cast in a single piece to form a socket or seat of the desired size to receive the joist or other timber.

The means for holding the timber in place consist of segment-grooves formed on the inner sides of the plates B B or segment-slots formed through the said plates.

In the drawings, F represents a segmentgroove in one plate B and F represents a segment-slot in the other. \Vhere segment-slots are employed a pin I I may be driven through he timber from the outside of the socket to engage the segment-slots; but where segment grooves are employed the pin or nail must be driven through the timber before the latter is inserted in the socket. Therefore one or more segment-slots in each socket is desirable, in that less care is required to put the pin in the proper place in the timber. The axis of each segment groove or slot is on the upper corner of the inside edge E of the plate A, whereby if the same axis be used to form a segment J on the upper corner of the timber 3r the latter, if burned off, would turn down on the corner E as'a fulcrum and be free from contact with the brick wall, and thus leave the socket in its proper place in the wall to receive another timber G.

I claim and desire to secure by Letters Patent of the United States- An improvement in wall socket-plates for building-timbers, consisting of a bottom and back plate and two side plates with segmentgrooves or segment-slots formed in said side plates, in combination with a pin put through said slots or grooves and through the engaging timber, as and for the purpose specified.

\VILLIAM II. DRAKE.

itnesses:

Gr. L. OI-IAPIN, CARLTON PROUTY. 

